forward air controller (FAC)

forward air controller (airborne) FAC(A)

proportional–integral–derivative controller (PID controller / three-term controller)

terminal attack controller (TAC) (= forward air controller)

forward air controller party

ground-based forward air controller

heliborne forward air controller

airborne forward air controller

forward observer (FO), forward observation officer; (artillery) observer / spotter

air controller

tactical air controller

air traffic controller (ATCo)

air intercept controller

controller (exercises)

fighter controller

Special Operations Terminal Attack Controller (SOTAC)

joint terminal attack controller (JTAC)

brake controller

combat controller

Controller Interceptor Trainer (CIT)

fluid-operated controller

differential pressure controller

pressure ratio controller

propeller speed controller

controller clearance

altitude controller

track controller

side-stick controller

controller

interception controller

sector controller

radar controller

airborne drone controller